Matsayin ci gaban fasahar samar da HPMC da tsarin hydroxypropyl methyl cellulose a China

Matsayin ci gaban fasahar samar da HPMC da tsarin hydroxypropyl methyl cellulose a China

Cellulose na Hydroxypropyl methylHPMCAna ba da fifiko ga samar da kayayyaki na cikin gida a yanzu ta hanyar fasahar hanyar ruwa, wannan fasaha tana wakiltar cibiyar bincike da ƙira ta masana'antar sinadarai ta Wuxi a China a cikin shekarun 1970, nasarorin bincike bisa ga haɓaka, asalin shine hanyar iskar gas ta hanyar etherification reaction, saboda kayan aikin ba su dace da ƙasarmu ba, sannan aka yi aiki da hanyar ruwa ta etherification reaction, Zuwa yanzu hanyar ruwa ta etherification reaction mai girma har yanzu ita ce babban tsarin samarwa na wasu sanannun masana'antun cellulose ether.

Samar da hydroxypropyl methyl cellulose na cikin gida (HPMC) gabaɗaya yana amfani da auduga mai tsafta azaman kayan da aka ƙera (wasu masana'antun sun fara ƙoƙarin amfani da ɓangaren itacen), kuma niƙa na gida ko amfani da alkalization na auduga mai tsafta kai tsaye, etherification ta amfani da ruwan haɗin halitta mai gauraye biyu, amsawa a cikin reactor na tsaye. Tsarin tsarkakewa yana amfani da tsari mai tsaka-tsaki wanda ake cire ruwan da ke cikin reactor kuma ana tsarkake samfurin ta hanyar wankewa da bushewa da yawa ta hanyar gogewa da centrifuges. Ana sarrafa samfurin da aka gama tare da granulation na ɗan lokaci, a ƙarƙashin yanayin dumama (akwai kuma masana'anta ba tare da granulation ba), bushewa da murƙushe hanyar gargajiya, yawancin sarrafawa na musamman shine kawai jinkirta lokacin ruwa na samfurin (narkewa da sauri) sarrafawa ba tare da mildew hana da rarrabawa ba, amfani da marufi ta hanyar hannu.

Hanyar matakin ruwa tana da fa'idodi masu zuwa: kayan aikin aiwatar da martani matsin lamba na ciki ƙanana ne, buƙatun ƙarfin matsin lamba na kayan aiki ba su da yawa, ƙaramin haɗari; Bayan an saka shi a cikin ruwa,celluloseAna iya faɗaɗa shi gaba ɗaya kuma a daidaita shi daidai gwargwado. Lye yana da mafi kyawun shiga da kumburin cellulose. Reactor ɗin etherification ƙarami ne, tare da kumburi iri ɗaya na alkali cellulose, don haka ingancin samfurin yana da sauƙin sarrafawa, ana iya samun matakin maye gurbin da ɗanko mafi daidaito, nau'ikan kuma suna da sauƙin maye gurbinsu.

Duk da haka, wannan tsari yana da waɗannan rashin amfani: na'urar samar da wutar lantarki yawanci ba ta da girma sosai, iyakokin ƙididdiga suna haifar da ƙaramin ƙarfin samarwa, don inganta fitarwa, ya zama dole a ƙara yawan na'urorin samar da wutar lantarki; Kayayyakin da aka tace da aka tsarkake suna buƙatar ƙarin kayan aiki, aiki mai rikitarwa, ƙarfin aiki; Saboda babu maganin hana mildew da mahaɗi, wanda ke haifar da kwanciyar hankali na danko da farashin samarwa; Marufi ta hanyar hannu, ƙarfin aiki, babban farashin aiki; Matsayin sarrafa amsawa ta atomatik ya yi ƙasa da na tsarin lokacin iskar gas, don haka daidaiton sarrafawa yana da ƙasa kaɗan. Idan aka kwatanta da tsarin lokacin iskar gas, ana buƙatar tsarin dawo da abubuwa masu rikitarwa.

Tare da inganta sinadarin hydroxypropyl methyl cellulose na cikin gidaHPMCfasahar samarwa, wasu kamfanoni ta hanyar ci gaba da kirkire-kirkire masu zaman kansu, an haɓaka hanyar babban matakin ruwa na kettle ta hanyar tsalle-tsalle da hanyoyi, kuma tana da nata halayen fasaha. Sinadarin Anxin yana amfani da tsarin samar da HPMC na asali, ba wai kawai tsarin samarwa ya dace ba, sigogin sarrafa aiki daidai ne kuma abin dogaro, cikakken amfani da kayan masarufi da sauran halaye masu kyau, kuma matakin maye gurbin samfurin iri ɗaya ne, amsawar ta cika cikakke, bayyananniya ta mafita tana da kyau, kuma a lokaci guda don tabbatar da kwanciyar hankali na ingancin samfur. Layin samar da HPMC na wasu kamfanoni an canza shi ta atomatik, don cimma buƙatun sarrafa sarrafa kansa na DCS na na'urar, ana iya amfani da kayan da suka haɗa da ruwa, kayan aiki masu ƙarfi don auna daidai da ƙara tsarin DCS, zafin jiki da sarrafa matsin lamba a cikin tsarin amsawa duk an cimma su ta hanyar sarrafa atomatik na DCS da sa ido daga nesa. Dangane da yuwuwar, aminci, kwanciyar hankali da amincin samarwa, a bayyane yake an inganta shi idan aka kwatanta da yanayin samarwa na gargajiya, wanda ba wai kawai yana ceton ma'aikata ba, yana rage ƙarfin aiki, amma kuma yana inganta yanayin aiki a wurin.